Inch-Foot Length Measurement Calculator

Adding and subtracting inches and inch fractions is easy, simply enter your feet, inches, or metric calculations below using this example as a guide:   6' 8 5/16" - 3ft + 8inch * 2 - 12mm

Imperial Units


Metric Units



What can you do with the inches and feet measurement calculator?

Add, subtract, or calculate tape measure feet, inches, and inch fractions or convert to metric measurements.
By Joe Sexton
  • Add, subtract, multiply, and divide imperial and metric measurements with as many values as you would like.
  • Type your calculation just like you would write it on a piece of paper.
  • Use inch and feet symbols, abbreviations, or singular or plural names.
  • Mix and match metric measurements and imperial measurements. Add or subtract inches, inch fractions, feet, yards, millimeters, centimeters, and meters in any combination.
  • Calculate length and get measurements in feet and inches, inches with fraction, inches as a decimal, millimeters, centimeters, and meters for easy conversion.
  • Round decimal feet and inches to the nearest inch fraction measurement and get the decimal measurement for the inch fraction.
  • Convert feet and inches to meters and centimeters and vice-versa. Convert many other measurements easily with our unit conversion tool.
  • Learn how to add and subtract feet, inches, and inch fractions.